Finding the Fourth Proportional to 13,991.82, 19,308.69 and 8,025.09

Step by Step Solution

1. Step 1: Write the proportion equation
   13,991.82 : 19,308.69 = 8,025.09 : x
2. Step 2: Convert to fraction form
   13,991.82/19,308.69 = 8,025.09/x
3. Step 3: Cross multiply
   13,991.82x = 19,308.69 × 8,025.09
4. Step 4: Simplify right side
   13,991.82x = 154,953,975.03
5. Step 5: Solve for x
   x = 154,953,975.03/13,991.82
6. Step 6: Final answer
   x = 11,074.61